(19)

(11)

EP 3 669 105 A1

(12)

(43) Date of publication: 24.06.2020 Bulletin 2020/26 (21) Application number: 18758688.8 (22) Date of filing: 08.08.2018

(51) International Patent Classification (IPC):  F16K 1/42(2006.01) E21B 34/04(2006.01) E21B 29/04(2006.01) (86) International application number: PCT/GB2018/052263 (87) International publication number: WO 2019/034848 (21.02.2019 Gazette 2019/08)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 18.08.2017 GB 201713253 (71) Applicant: Expro North Sea Limited Dyce, Aberdeen AB21 0LQ (GB)	(72) Inventor: MANETT, Kris Fraserburgh Aberdeenshire AB43 9WH (GB) (74) Representative: Orr, Robert  Urquhart-Dykes & Lord LLP Arena Point Merrion Way Leeds LS2 8PA Leeds LS2 8PA (GB)